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Vesuvianite
Vesuvianite

Omphacite
Omphacite



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Vesuvianite
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Omphacite

Vesuvianite and Omphacite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Resinous
slight in colored varieties
0.03
-
1.703-1.752
-
tetragonal
0.004-0.006
-
 
Vitreous
Weak: colorless -- very pale green -- very pale green
0.02
TranslucentAnthony et al
1.662-1.723
-
-
-9999
TranslucentAnthony et al

Vesuvianite and Omphacite Optic Character

Vesuvianite and Omphacite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Vesuvianite Vs Omphacite like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Vesuvianite and Omphacite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

Vesuvianite and Omphacite Transparency

Similar to their colors, Vesuvianite and Omphacite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Vesuvianite is while Vesuvianite is in appearance.